PAP Forces Test Review

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The best example of unbalanced forces is

• plane traveling at a constant speed

• a ball sitting still

• a skydiver falling at a constant speed

• a rocket moving faster and faster as it blasts off

Unbalanced forces can an object to ...

• change direction

• change position

• change speed

• all of the above

The best example of balanced forces is a

• car increasing speed.

• bus parked in a garage.

• ball kicked along a flat surface.

• roller coaster slowing down on an incline.

• The box will not move.

• The box will move toward student 1.

• The box will move toward student 2.

• The box will slowly turn in place.

• North

• East

• South

• West

• Contact with the bat releases the ball's potential energy.

• Contact with the ball creates a balanced force affecting the bat.

• Contact with the ball releases the bat's potential energy.

• Contact with the bat creates an unbalanced force affecting the ball.

• The car would maintain a constant speed.

• The car would speed up.

• The car would slow down.

• The car would come to a stop.

Which of the following can be considered an example of acceleration?

• speeding up only

• slowing down only

• both speeding up or slowing down

• standing still

The mathematical model for calculating speed is shown below.

speed=distance/time

An airplane traveled 700 kilometers in two hours during a trip. What was the average speed of the plane during the trip?

• 5.8 kilometers per hour

• 350 kilometers per hour

• 1400 kilometers per hour

• 84,000 kilometers per hour